GB1327313A - Purification of m-cresol - Google Patents
Purification of m-cresolInfo
- Publication number
- GB1327313A GB1327313A GB3420971A GB3420971A GB1327313A GB 1327313 A GB1327313 A GB 1327313A GB 3420971 A GB3420971 A GB 3420971A GB 3420971 A GB3420971 A GB 3420971A GB 1327313 A GB1327313 A GB 1327313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cresol
- mixture
- urea
- impurity
- ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1327313 m-Cresol SUMITOMO CHEMICAL CO Ltd 21 July 1971 [22 July 1970 8 Dec 1970 (2)] 34209/71 Heading C2C m-Cresol is recovered from a mixture thereof with at least one impurity (e.g. p-cresol) which is non-reactive with urea, by treating the impurity/m-cresol mixture with urea to convert the m-cresol component to a thermally decomposable urea/m-cresol reaction product, thermally decomposing the said reaction product, and then separating the m-cresol from the reaction mixture, the step of treating the impurity m-cresol mixture with urea and/or the decomposition step being carried out in benzene optionally substituted by 1 to 4 C 1-3 alkyl groups and/or 1 or 2 halogen atoms, a di-(C 2-5 alkyl) ether or a C 4-5 cyclic ether as the solvent medium. Specified solvents are benzene, toluene, xylene, isopropyltoluene, chlorobenzene, diethyl ether, dipropyl ether, tetrahydrofuran and dioxane. In examples, m-cresol is separated from m- and p-cresol mixtures and from a mixture of m-cresol, p-cresol, styrene and acetophenone.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6463670 | 1970-07-22 | ||
| JP10998070 | 1970-12-08 | ||
| JP10997970 | 1970-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1327313A true GB1327313A (en) | 1973-08-22 |
Family
ID=27298537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3420971A Expired GB1327313A (en) | 1970-07-22 | 1971-07-21 | Purification of m-cresol |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3855195A (en) |
| BE (1) | BE770234A (en) |
| CA (1) | CA918680A (en) |
| DE (1) | DE2136700C3 (en) |
| FR (1) | FR2103120A5 (en) |
| GB (1) | GB1327313A (en) |
| NL (1) | NL174140C (en) |
| SU (1) | SU1053741A3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044052A (en) | 1972-11-03 | 1977-08-23 | Sumitomo Chemical Company, Limited | Process for recovery of urea from its phenolic solution |
| US3998853A (en) * | 1975-12-04 | 1976-12-21 | Phillips Petroleum Company | 13-Oxatetracyclo[8.2.12,9.0.03,8 ]tridec-5-ene-1,5,6,10-tetracarbonitrile |
| US4080327A (en) * | 1976-07-22 | 1978-03-21 | Phillips Petroleum Company | 13-Oxatetracyclo[8.2.12,9.0.03,8 ]tridec-5-ene-1,5,6,10-tetracarbonitrile and separation of its monocyclic aromatic clathrates |
| CN102167658A (en) * | 2011-03-16 | 2011-08-31 | 北京化工大学 | Technology for complexing, crystallizing, separating and purifying metacresol |
| CN103333051B (en) * | 2013-07-18 | 2015-12-23 | 北京旭阳化工技术研究院有限公司 | A kind of method of producing meta-cresol |
| CN104230669B (en) * | 2014-09-11 | 2017-02-08 | 苏州飞翔新材料研究院有限公司 | Separation and purification method of m-cresol |
| CN113914099B (en) | 2021-11-30 | 2023-10-31 | 泰山玻璃纤维邹城有限公司 | Electronic grade low dielectric glass fiber cloth treating agent and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1830859A (en) * | 1927-09-14 | 1931-11-10 | Schering Kahlbaum Ag | Process for separating meta-cresol from phenolic mixtures |
| GB1191631A (en) * | 1966-05-24 | 1970-05-13 | Struthers Scientific Int Corp | Separation of M-Cresol from Cresol Mixtures |
-
1971
- 1971-07-20 BE BE770234A patent/BE770234A/en unknown
- 1971-07-20 FR FR7126557A patent/FR2103120A5/fr not_active Expired
- 1971-07-21 SU SU711686002A patent/SU1053741A3/en active
- 1971-07-21 GB GB3420971A patent/GB1327313A/en not_active Expired
- 1971-07-21 CA CA118766A patent/CA918680A/en not_active Expired
- 1971-07-22 DE DE2136700A patent/DE2136700C3/en not_active Expired
- 1971-07-22 NL NLAANVRAGE7110086,A patent/NL174140C/en not_active IP Right Cessation
- 1971-07-22 US US00165364A patent/US3855195A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL174140C (en) | 1984-05-01 |
| BE770234A (en) | 1972-01-20 |
| CA918680A (en) | 1973-01-09 |
| DE2136700B2 (en) | 1974-07-11 |
| SU1053741A3 (en) | 1983-11-07 |
| FR2103120A5 (en) | 1972-04-07 |
| NL174140B (en) | 1983-12-01 |
| US3855195A (en) | 1974-12-17 |
| DE2136700C3 (en) | 1975-02-27 |
| DE2136700A1 (en) | 1972-01-27 |
| NL7110086A (en) | 1972-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |